Overlay Cognitive Radio in Wireless Mesh Networks

TL;DR

This paper explores overlay cognitive radio in wireless mesh networks, demonstrating that concurrent transmissions enabled by this approach can significantly increase network capacity in various topologies.

Contribution

It introduces the application of overlay cognitive radio to wireless mesh networks and analyzes capacity gains in different network topologies.

Findings

Concurrent transmissions improve network capacity

Significant gains in regular and random topologies

Overlay cognitive radio enables more efficient spectrum use

Abstract

In this paper we apply the concept of overlay cognitive radio to the communication between nodes in a wireless mesh network. Based on the overlay cognitive radio model, it is possible to have two concurrent transmissions in a given interference region, where usually only one communication takes place at a given time. We analyze the cases of wireless mesh networks with regular and random topologies. Numerical results show that considerable network capacity gains can be achieved.